Building construction.



M. DAVIS. BUILDING CONSTRUCTION. APPLICATION FlL ED JUNEZZI 1916.

Patent/ed Apr. 3, 1917 -LQQLIWIL s PEYERS co.. PHDI'U-LITHO-- WAsmm;

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PENNSYLVANIA, ASSIGNOR TO ASBESTOS PROTECTED PENNSYLVANIA, A CORPORATION F PENNSYL- BUILDING CONSTRUCTION.

Specification of Letters Patent.

Patented Apr. 3, 1917.

Application filed June 22, 1916. Serial No. 105,279.

To all whom it may concern:

Be it known that I, MEYER DAVIS, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented an 1m )rovement in Buildin Construction of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a novel means for fastening metallic devices to non-metal lie devices and especially devices made of wncreto, cement and like material. The invention is particularly adapted among other uses to be employed in concrete or like constructions for securing metal plates or sheets and particularly corrugated metal plates or sheets to the concrete purlins, beams, girders, etc, in the "roof and floors of concrete building constructions.

To this end I interpose between the concrete structure, such as a beam and the metal plate to be supportedthereby, a me1nher which is fastened to the beam and to which the metal plate is secured by means separate from that employed to secure the said member to the concrete structure.

The intermediate member may and pref erably will be made as a folded metal strip which carries the fastening device for the metal plate.

These and other features of this invention will be pointed out in the claims at the end of this specification.

Figure 1 is a plan view with parts broken away of a construction embodying this in vention.

Fig. 2, an end elevation of the construction shown in Fig. 1.

Fig. 3, a cross-section on an enlarged scale, taken on the line 3-3, Fig. 2.

Fig. 4, a detail in section to be referred to, and

Fig. 5, a perspective view of the rivet retaining plate or member shown in Figs. 1 to 4.

In the present instance, I have represented the invention as embodied in a structure, such as a building, having concrete beams, girders or purlins a and sheet metal plates 6 constituting a part of the building and particularly the roof and floors thereof.

To facilitate description, I will hereinafter refer to the member a, which may be of concrete, cement or other non-metallic material as the concrete beam, and the metal member 6, which may be sheets, plates or strips of plain or protected metal, as the metal plate.

The concrete beam a has embodied in it before it has set or hardened, a fastening device, preferably a bolt 0, herein shown as a hook bolt, which has a threaded portion 10 of its shank extended above or beyond the concrete beam and through a member d, which is preferably made as herein shown and consists of a metal strip, folded preferably at or near its center to form upper and lower leaves 12, 13, between which are confined the heads 14 of rivets 15 or other fastening devices, which are employed to secure the metal plate I) to the intermediate member (Z.

The folded metal strip is provided with openings 17, in both of its leaves (see Fig. 5), for the passage of the threaded end 10 of the shank of the bolt 0, and said openings are preferably made of a diameter greater than the diameter of the bolt so as to allow for slight irregularities in the position of the bolts in the beam.

The upper leaf 12 is further provided with holes 18 for the passage through them of the rivets or other fastening devices 15, whose heads 14 are of greater diameter than the holes 18.

The heads 14 of the rivets are located between the leaves 12, 13, and the rivets are thus permanently secured to the folded strip so as to be handled as one piece therewit The folded strips with the rivets secured theretocan be made up in the factory and shipped to the job as a unit, ready to be laid upon the beam, to which latter the folded strip may be fastened by applying the folded strip to the beam. so that the threaded shank of one or more bolts 0 passes through the holes 17 in the folded strip and through a washer 30, and then setting up a nut 20 on the end of the bolt, which projects beyond the folded strip, so as to secure the latter in fixed relation to the beam. The metal plates Z; may then be firmly secured to the folded strip by the rivets 15, which are passed through suitable holes in the said plates and provided with a head 21 or other suitable device for preventing separation of the metal plates from the rivet holding strip. This arrangement of parts is especially adapted for use with corrugated metal plates, as the corrugated plates may be laid on the beams so that the nut and end 10 of the bolt 0 may be extended up into a valley 22 of the corrugation and be covered by the metal walls of said'valley, While the rivets 15 may be extended through overlapping portions of the corrugated plates 7), which form the bottom wall of other valleys 23. The rivets 15 may also be utilized to secure retaining-clips 24: for the metal reinforcement 25 for the con crete, which may be laid upon the corrugated plates and not herein shown.

It will thus be seen that the metal plates b are firmly fastened to the metal strip by the rivets 15, or it may be by bolts or other suitable fastening devices, and the metal strips are firmly fastened to the concrete beam by the bolts 0 or other suitable fastening devices.

It will further be observed that the strips (Z may be quickly and easily fastened to the concrete beams, and the plates then quickly and easily fastened to the said strip.

It will also be observed that the metal plates are secured to a device between it and the concrete beam by one set of fastening devices, and that the intermediate device is fastened to the concrete beam by another set of fastening devices, whichare disconnected from the metal plates, and while it may be preferred to make the intermediate device for holding the rivets as a folded metal strip, it is not desired to limit the invention in this respect;

Furthermore it is not desired to limit the invention to the use of the same in a building structure, as it mav be employed equally as well in other concrete structures, such as bridges, etc.

Claims: r

1. The combination with a concrete beam provided with fastening devices having one end anchored therein and having their other ends projecting therefrom, of a folded metal strip provided with openings in its leaves in alinement and through which the projecting ends of said fastening devices are extended, means cooperating with said projecting ends to secure said folded metal strips to the concrete beam, fastening devices carried bysaid folded metal strips and provided with heads located between the leaves of said folded strip and having shanks extended through the outer one of said leaves, and metal plates secured to said folded strip by said fastening devices.

, 2. The combination with a concrete beam, of a metal plate supported thereby, a folded strip between said plate and beam, a faste ing device embedded in said beam and projecting above the same to secure said folded strip to said beam, and a separate fastening device to secure said plate to said folded strip.

3. The combination with a concrete beam, of a metal plate supported thereby, a metal strip between said beam and plate, a fastening device anchored in said beam and cooperating with said strip to secure said strip to the latter, and a separate fastening device to secure said plate to said strip.

4. The combination with a concrete beam,

of a corrugated metal plate supported thereby, a metal strip provided with substantially parallel leaves spaced apart and having holes in both of said leaves in alinement and leaves for securing the said metal strip to said beam, and a fastening device provided with a head located between the said leaves and extended through the said additional hole for securing the metal plate to said strip.

5. The combination with a concrete structure and a metal plate supported thereby, of a member interposed between said concrete structure and said metal plate, a fastening device anchored in said beam and cooperating with said intermediate membcr to secure the intermediate member to the concrete structure, and a separate fastening device to secure the metal plate to the inter mediate member.

6. The combination with a metal device provided with substantially parallel leaves joined together at one edge and each having its opposite edge free, said leaves being spaced apart and having holes in them in alinement, and provided with an additional hole in one of said leaves, of a fastening-device provided with a head located between the said leaves and extended through said additional hole.

In testimony whereof, I have signed my name to this specification.

MEYER DAVIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

